Its impossible to get the properties without metallic the thin films. We must need electrodes for thin film or ceramics to measure impedance spectroscopy. I hope this is the answer for your question.

Venkata Ramana Mudinepalli

Dear Mr. Mudinepalli

Thank you for your answer,

can i ask you, please, is it the same in case of films that have an electrical resistivity in the order of (10 ^4 Ohm.cm)?

Any electric measurements performed on non-metallic films necessitate prior metallization to establish "ohmic" contact between the wires and the films. Otherwise, if you connect the wires "directly" to your films, you'll create a hetero-junction at the interface film/wire which will radically compromise your measurements.

Larbi Filali

Dear Mr Filali,

Thank you for your answer.